You keep putting nickles in the handset to gradually make it feel heavier. When it's then emptied all at once, he goes to pick it up with too much force because he was expecting it to be heavier. Like when you go to pick up a box that you think is full but it turns out it was actually empty.

I got this!
This is from the show 'The Office'. It's a comedy, and the funniest things usually come from the character Jim messing with Dwight. These pictures come from an episode in which it is revealed that Dwight has been filing formal complaints about such things. The boss, Michael Scott, is reading said complaints in the depicted scenes. In the second to last image, Jim is explaining how he managed to get Dwight to hit himself in the head with his phone.
And so, the joke! Gif unrelated.

because dwight is supposed to be depressed and I'm pretty sure deaf people can imagine what a song titled "everybody hurts" is like. I doubt they imagine a song about chicken buttsex with that kind of title.